Y-Axis Failures

The y-axis motion on the AMAYA is controlled by the electronics. The motor driver on the Main PCB sends commands to the motor. Feedback to the Main PCB is provided by the y-motor encoder and the x/y home sensor PCB. These devices tell the AMAYA OS software and the Main PCB where the motor is during embroidering.

Problem	Possible Causes	Solution
Binding in y-axis or jumpy, uneven movement of the x-beam	Bad bearings in the idler pulley	Replace the idler pulley assembly
	Y-drive timing belt tension too tight or too loose	Adjust the y-belt tensions
	Fretting corrosion of the y-rails	Replace the y-rails and the bearing block assemblies.
	Lack of lubrication	Lubricate the bearing block assemblies.
	Damaged belts	Replace both y-axis timing belts.
	Binding in the motor windings	Replace the y-motor.
Excess noise when the x-beam moves	Lack of lubrication to the y-axis rails	Lubricate the bearing block assemblies
	Incorrect belt tension	Adjust the y-timing belt tensions.
	Fretting corrosion of the carriage rails	Replace the y-rails
Y-axis runaway	Connection at motor encoder reversed	Reconnect the interface harness to the y-motor correctly
Y-axis runaway	Short in either the x/y home harness or the motor interface cable	Replace the defective harness
Can not find home	X/Y Home Not Set message will appear in the AMAYA OS message text box	Set x/y home
	Dirty or damaged sensor	Clean or replace the x/y home PCB.
	Loose harness connection	Reconnect the harness